Cub Cadet 682
 

Looking at a Cub Cadet 682 that's for sale.


The ad says "The Kohler engine turns over and runs, however it fouls the points with oil after a short time."


Would this just be a seal? Or is it a bigger problem than that?:bigthink:

Worn push rod. Cheap and easy fix.

Thanks Tyler! :ThumbsUp:

Also wondering if KT-17 motors have any problems, weaknesses, etc?:bigthink:

Also, whats the best way to tell if the motor is a series I or II?

The series 1 motors are prone to blow up if they are ran at steep angles. The rod journals are lubricated by oil falling off the cam and when you get it at a steep angle, it misses the rod that is higher in the air. The series 2 motors fixed this problem by increasing the oil pressure and lubricating the rod journals directly through the crank.

The only problem I consistently hear about with the series 2's is the crankcase filling with gas. It usually caused by either a bad fuel pump or the carb needing rebuilt.

As far as telling the difference between the 2 engines, I don't know of a way to do it accurately with out tearing into the engine. There are a couple of things that can make you lean one way or the other. The series 1 engine had a pipe plug for the oil fill. Series 2 engines had a plastic oil fill tube, but I've seen series 1's where the plastic tube was added. Also, the later series 2's have provisions for a external oil filter, but early ones didn't. The series 2 engine I have is out of a 1985 682 and it doesn't have oil filter provisions. Maybe the 1710 and 1711 engines did. Lastly, all series 1 engines have the better carter adjustable carb. But some series 2's have them also.

The only way I know of to truly tell if you have a series 1 or a series 2, is to pull the cover plate off and see if it has a oil pressure check relief valve. That was one of the improvements of the series 2.

The engine should have a tag on it that lists the specification number. Its located on the top left (as you sit on tractor) of the engine.

If the spec number is 24299 or lower, it is a Series I. Numbers 24300 and higher indicate a Series II.

Check out this link for engine manual:

http://onlycubcadets.net/forum/showthread.php?t=4649